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Finding the Third Proportional to 100,372.88 and 147,786.28

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Solution

The third proportional to 100,372.88 and 147,786.28 is: 217,596.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,372.88 : 147,786.28 = 147,786.28 : x
  2. Step 2: Convert to fraction form
    100,372.88/147,786.28 = 147,786.28/x
  3. Step 3: Cross multiply
    100,372.88x = 147,786.28 × 147,786.28
  4. Step 4: Simplify right side
    100,372.88x = 21,840,784,925.70
  5. Step 5: Solve for x
    x = 21,840,784,925.70/100,372.88
  6. Step 6: Final answer
    x = 217,596.49

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.